US2023338726A1PendingUtilityA1

Percutaneous circulatory support device including curved proximal catheter

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Assignee: BOSTON SCIENT SCIMED INCPriority: Apr 25, 2022Filed: Apr 24, 2023Published: Oct 26, 2023
Est. expiryApr 25, 2042(~15.8 yrs left)· nominal 20-yr term from priority
Inventors:Corey N. MeyerIan Meredith
A61M 60/865A61M 60/178A61M 60/422A61M 25/007A61M 60/237A61M 60/13A61M 60/216A61M 60/857A61M 60/174A61M 25/0152A61M 2207/00
49
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Claims

Abstract

A percutaneous circulatory support device includes an impeller portion having a proximal end portion and an impeller being rotatable to cause blood to flow through the percutaneous circulatory support device. A catheter is coupled to the proximal end portion, and the catheter includes a preformed curve.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A percutaneous circulatory support device, comprising:
 an impeller portion comprising;
 a distal end portion; 
 a proximal end portion; and 
 an impeller being rotatable to cause blood to flow through the percutaneous circulatory support device; 
   a cannula coupled to the distal end portion; and   a catheter coupled to the proximal end portion, the catheter comprising a preformed curve having a radius in a range of 2.00 inches to 0.25 inches.   
     
     
         2 . The percutaneous circulatory support device of  claim 1 , wherein the radius of the preformed curve is in a range of 1.50 inches to 0.90 inches. 
     
     
         3 . The percutaneous circulatory support device of  claim 1 , wherein the radius of the preformed curve is in a range of 1.40 inches to 1.00 inches. 
     
     
         4 . The percutaneous circulatory support device of  claim 1 , wherein the preformed curve is offset from the proximal end portion of the impeller portion by a distance in a range of 1.00 inches to 0.05 inches. 
     
     
         5 . The percutaneous circulatory support device of  claim 1 , wherein the preformed curve is offset from the proximal end portion of the impeller portion by a distance in a range of 0.65 inches to 0.05 inches. 
     
     
         6 . The percutaneous circulatory support device of  claim 1 , wherein the preformed curve is offset from the proximal end portion of the impeller portion by a distance in a range of 0.55 inches to 0.15 inches. 
     
     
         7 . The percutaneous circulatory support device of  claim 1 , wherein the preformed curve comprises an arc length in a range of 1.88 inches to 0.63 inches. 
     
     
         8 . The percutaneous circulatory support device of  claim 1 , wherein the preformed curve comprises an arc length in a range of 1.70 inches to 1.10 inches. 
     
     
         9 . The percutaneous circulatory support device of  claim 1 , wherein the preformed curve comprises an arc length in a range of 1.60 inches to 1.20 inches. 
     
     
         10 . The percutaneous circulatory support device of  claim 1 , wherein the preformed curve is a preformed catheter curve, and the cannula comprises a preformed cannula curve. 
     
     
         11 . The percutaneous circulatory support device of  claim 10 , wherein the preformed catheter curve and the preformed cannula curve are disposed in a common plane. 
     
     
         12 . A percutaneous circulatory support device, comprising:
 an impeller portion comprising:
 a distal end portion; 
 a proximal end portion; 
 an impeller being rotatable to cause blood to flow through the percutaneous circulatory support device; 
   a cannula coupled to the distal end portion; and   a catheter coupled to the proximal end portion, the catheter comprising a preformed curve having an arc length in a range of 1.88 inches to 0.63 inches and being offset from the proximal end portion by a distance in a range of 1.00 inches to 0.05 inches.   
     
     
         13 . The percutaneous circulatory support device of  claim 12 , wherein the preformed curve comprises a radius in a range of 2.00 inches to 0.25 inches. 
     
     
         14 . The percutaneous circulatory support device of  claim 12 , wherein the preformed curve is a preformed catheter curve, and the cannula comprises a preformed cannula curve. 
     
     
         15 . The percutaneous circulatory support device of  claim 14 , wherein the preformed catheter curve and the preformed cannula curve are disposed in a common plane. 
     
     
         16 . A method of manufacturing a percutaneous circulatory support device, the method comprising:
 providing an impeller portion comprising a distal end portion, a proximal end portion, and a rotatable impeller;   coupling a cannula to the distal end portion; and   coupling a catheter to the proximal end portion, the catheter comprising a preformed curve having a radius in a range of 2.00 inches to 0.25 inches.   
     
     
         17 . The method of  claim 16 , wherein the preformed curve comprises an arc length in a range of 1.88 inches to 0.63 inches. 
     
     
         18 . The method of  claim 16 , wherein the preformed curve is offset from the proximal end portion of the impeller portion by a distance in a range of 1.00 inches to 0.05 inches. 
     
     
         19 . The method of  claim 16 , wherein the preformed curve is a preformed catheter curve, and the cannula comprises a preformed cannula curve. 
     
     
         20 . The method of  claim 16 , wherein the preformed catheter curve and the preformed cannula curve are disposed in a common plane.

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